NTSB CAROL · Event
Event LAX02LA052
Registry · N5172R
FAA Aircraft Registry record.
Make / Model
CESSNA A185F
Year of manufacture
1976 · 25 years old at event
Engine
CONT MOTOR IO 520 SERIES (285 hp)
Seats / Engines
6 seats · 1 engine
Last airworthiness date
19760505
ADS-B equipped
Yes — Mode-S A67E1E
Registrant of record
WATERHOUSE ROY TODD
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
Wear on the tail wheel thrust plate spacers resulted in the compression springs binding on the thrust plates and the tail wheel sticking, so that the pilot could not maintain directional control.
Factual narrative
On December 18, 2001, about 1330 Pacific standard time, a Cessna 185F, N5172R, ground looped on landing at Reno, Nevada. The commercial pilot/owner was operating the airplane under the provisions of 14 CFR Part 91. The pilot and one passenger were not injured; the airplane sustained substantial damage. The personal cross-country flight departed Carson City, Nevada, about 1315. Day visual meteorological conditions prevailed, and no flight plan had been filed. The pilot stated the landing was uneventful until he lowered the tail to the ground. The airplane suddenly veered to the right. The pilot locked up the left wheel brake, but the airplane continued to the right. Just before the airplane stopped, the left wing and horizontal stabilizer contacted the ground. The Federal Aviation Administration inspector completed a preliminary examination of the airplane. The pilot told him that on several previous occasions the tail wheel seemed to stick initially and cause the airplane to deviate from the selected track, but would free up and track straight. The inspector determined the tail wheel rotated freely until he moved it to its maximum left deflection limit, and the tail wheel locked in this position. A mechanic examined the tail wheel and filed a report with the inspector. The mechanic felt that the tail wheel stuck right of center. He detected wear on both sides of the thrust plate spacers (part number 3407-00). He suspected that the tail wheel springs (part number 3233-00) were binding on the thrust plates. He recommended replacement of the thrust plates whenever they showed wear on either side. The left wing and horizontal stabilizer sustained substantial damage when they contacted the ground during the landing roll. The landing was uneventful until the pilot lowered the tail to the ground, and the airplane suddenly veered to the right. The pilot locked up the left wheel brake, but the airplane continued to the right. Just before the airplane stopped, the left wing and horizontal stabilizer contacted the ground. The pilot said that on several previous occasions the tail wheel seemed to stick initially and cause the airplane to deviate from the selected track, but would free up and track straight. Post accident examination revealed that the tail wheel rotated freely until moved to its maximum left deflection limit, and the tail wheel locked in this position. A mechanic detected wear on both sides of the thrust plate spacers (part number 3407-00). He suspected that the tail wheel springs (part number 3233-00) were binding on the thrust plates. He recommended replacement of the thrust plates whenever they showed wear on either side. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2001_LAX02LA052.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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